| NWS Forecast for: St. Charles County Issued by: National Weather Service Saint Louis, MO Last Update: 240 PM CST Sat Feb 7 2026 |  |
| Tonight: Mostly cloudy. Lows in the upper 20s. Southeast winds 5 to 10 mph. Sunday: Mostly sunny. Highs in the upper 40s. Southeast winds 5 to 10 mph with gusts up to 20 mph. Sunday Night: Mostly clear. Lows in the upper 20s. East winds 5 to 10 mph. Monday: Sunny. Not as cool with highs in the upper 50s. South winds around 5 mph. Monday Night: Mostly clear. Not as cool with lows in the lower 40s. South winds 5 to 10 mph. Tuesday: Mostly sunny. A slight chance of rain in the afternoon. Highs in the lower 60s. Chance of rain 20 percent. Tuesday Night: Mostly cloudy with a 50 percent chance of rain. Lows in the mid 30s. Wednesday And Wednesday Night: Mostly cloudy with a 30 percent chance of rain. Highs around 50. Lows in the mid 30s. Thursday: Mostly cloudy with a 40 percent chance of rain. Highs in the mid 40s. Thursday Night: Mostly cloudy. A chance of rain, mainly in the evening. Lows around 30. Chance of rain 30 percent. Friday: Partly sunny with a 20 percent chance of rain. Highs in the mid 40s. Friday Night: Mostly cloudy. A slight chance of rain in the evening, then a chance of rain and snow after midnight. Lows in the upper 20s. Chance of precipitation 30 percent. Saturday: Partly sunny with a chance of rain and snow. Highs in the lower 40s. Chance of precipitation 40 percent. | |
| Zone Forecast: St. Charles County | |
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